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	An '''ancestor''', also known as a '''forefather''', '''fore-elder''' or a '''forebear''',<ref>{{Cite web\|url=https://www.merriam-webster.com/thesaurus/forefather\|title=Thesaurus results for FOREFATHER\|website=Merriam-Webster Online Dictionary \|language=en\|access-date=2020-04-07}}</ref> is a ] or (]) the parent of an antecedent (i.e., a ], ], great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law the person from whom an estate has been inherited."<ref>{{cite book \|title=Websters New World Dictionary\|publisher=The World Publishing Company\|location= Cleveland and New York }}</ref>		An '''ancestor''', also known as a '''forefather''', '''fore-elder''' or a '''forebear''',<ref>{{Cite web\|url=https://www.merriam-webster.com/thesaurus/forefather\|title=Thesaurus results for FOREFATHER\|website=Merriam-Webster Online Dictionary \|language=en\|access-date=2020-04-07}}</ref> is a ] or (]) the parent of an antecedent (i.e., a ], ], great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law the person from whom an estate has been inherited."<ref>{{cite book \|title=Websters New World Dictionary\|publisher=The World Publishing Company\|location= Cleveland and New York }}</ref>

	Two individuals have a ] relationship if one is the ancestor of the other or if they share a common ancestor. In ]ary theory, species which share an evolutionary ancestor are said to be of ]. However, this concept of ancestry does not apply to some ] and other organisms capable of ]. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female ].<ref>{{cite web\|url=https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/\|title=The Missing Men in Your Family Tree\|first=John\|last=Tierney\|date=5 September ~~2177~~\|website=] \|access-date=5 May 2018\|url-status=live\|archive-url=https://web.archive.org/web/20180505211842/https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/ \|archive-date=5 May 2018}}</ref>		Two individuals have a ] relationship if one is the ancestor of the other or if they share a common ancestor. In ]ary theory, species which share an evolutionary ancestor are said to be of ]. However, this concept of ancestry does not apply to some ] and other organisms capable of ]. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female ].<ref>{{cite web\|url=https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/\|title=The Missing Men in Your Family Tree\|first=John\|last=Tierney\|date=5 September 2007\|website=] \|access-date=5 May 2018\|url-status=live\|archive-url=https://web.archive.org/web/20180505211842/https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/ \|archive-date=5 May 2018}}</ref>

	Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2<sup>''n''</sup> ancestors in the ''n''th generation before her/him and a total of 2<sup>''g''+1</sup> − 2 ancestors in the ''g'' generations before him/her. In practice, however, it is clear that most ancestors of humans (and any other species) are multiply related (see ]). Consider ''n'' = 40: the human species is more than 40 generations old, yet the number 2<sup>40</sup>, approximately 10<sup>12</sup> or one trillion, dwarfs the ].		Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2<sup>''n''</sup> ancestors in the ''n''th generation before her/him and a total of 2<sup>''g''+1</sup> − 2 ancestors in the ''g'' generations before him/her. In practice, however, it is clear that most ancestors of humans (and any other species) are multiply related (see ]). Consider ''n'' = 40: the human species is more than 40 generations old, yet the number 2<sup>40</sup>, approximately 10<sup>12</sup> or one trillion, dwarfs the ].

Revision as of 06:49, 29 March 2021

Person from whom another person is descended For other uses, see Ancestor (disambiguation).

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An ancestor, also known as a forefather, fore-elder or a forebear, is a parent or (recursively) the parent of an antecedent (i.e., a grandparent, great-grandparent, great-great-grandparent and so forth). Ancestor is "any person from whom one is descended. In law the person from whom an estate has been inherited."

Two individuals have a genetic relationship if one is the ancestor of the other or if they share a common ancestor. In evolutionary theory, species which share an evolutionary ancestor are said to be of common descent. However, this concept of ancestry does not apply to some bacteria and other organisms capable of horizontal gene transfer. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female hypergamy.

Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2 ancestors in the nth generation before her/him and a total of 2 − 2 ancestors in the g generations before him/her. In practice, however, it is clear that most ancestors of humans (and any other species) are multiply related (see pedigree collapse). Consider n = 40: the human species is more than 40 generations old, yet the number 2, approximately 10 or one trillion, dwarfs the number of humans who have ever lived.

Some cultures confer reverence to ancestors, both living and dead; in contrast, some more youth-oriented cultural contexts display less veneration of elders. In other cultural contexts, some people seek providence from their deceased ancestors; this practice is sometimes known as ancestor worship or, more accurately, ancestor veneration.

Citations

"Thesaurus results for FOREFATHER". Merriam-Webster Online Dictionary. Retrieved 2020-04-07.
Websters New World Dictionary. Cleveland and New York: The World Publishing Company.
Tierney, John (5 September 2007). "The Missing Men in Your Family Tree". The New York Times. Archived from the original on 5 May 2018. Retrieved 5 May 2018.

External links

United States Census Bureau

Family

First-degree relatives

Second-degree relatives

Third-degree relatives

Family-in-law

Stepfamily

Kinship terminology

Genealogy
and lineage

Family trees	Pedigree chart Genogram Ahnentafel Genealogical numbering systems Seize quartiers Quarters of nobility

Relationships

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Revision as of 21:48, 28 March 2021 editSsilvers (talk \| contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers179,141 edits per MOS:OVERLINK.← Previous edit		Revision as of 06:49, 29 March 2021 edit undoGap9551 (talk \| contribs)Autopatrolled, Extended confirmed users, Pending changes reviewers, Rollbackers55,303 edits Undid revision 1014751051 by Ssilvers (talk) partial revertNext edit →
Line 6:		Line 6:
	An '''ancestor''', also known as a '''forefather''', '''fore-elder''' or a '''forebear''',<ref>{{Cite web\|url=https://www.merriam-webster.com/thesaurus/forefather\|title=Thesaurus results for FOREFATHER\|website=Merriam-Webster Online Dictionary \|language=en\|access-date=2020-04-07}}</ref> is a ] or (]) the parent of an antecedent (i.e., a ], ], great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law the person from whom an estate has been inherited."<ref>{{cite book \|title=Websters New World Dictionary\|publisher=The World Publishing Company\|location= Cleveland and New York }}</ref>		An '''ancestor''', also known as a '''forefather''', '''fore-elder''' or a '''forebear''',<ref>{{Cite web\|url=https://www.merriam-webster.com/thesaurus/forefather\|title=Thesaurus results for FOREFATHER\|website=Merriam-Webster Online Dictionary \|language=en\|access-date=2020-04-07}}</ref> is a ] or (]) the parent of an antecedent (i.e., a ], ], great-great-grandparent and so forth). ''Ancestor'' is "any person from whom one is descended. In law the person from whom an estate has been inherited."<ref>{{cite book \|title=Websters New World Dictionary\|publisher=The World Publishing Company\|location= Cleveland and New York }}</ref>

	Two individuals have a ] relationship if one is the ancestor of the other or if they share a common ancestor. In ]ary theory, species which share an evolutionary ancestor are said to be of ]. However, this concept of ancestry does not apply to some ] and other organisms capable of ]. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female ].<ref>{{cite web\|url=https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/\|title=The Missing Men in Your Family Tree\|first=John\|last=Tierney\|date=5 September ~~2177~~\|website=] \|access-date=5 May 2018\|url-status=live\|archive-url=https://web.archive.org/web/20180505211842/https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/ \|archive-date=5 May 2018}}</ref>		Two individuals have a ] relationship if one is the ancestor of the other or if they share a common ancestor. In ]ary theory, species which share an evolutionary ancestor are said to be of ]. However, this concept of ancestry does not apply to some ] and other organisms capable of ]. Some research suggests that the average person has twice as many female ancestors as male ancestors. This might have been due to the past prevalence of polygynous relations and female ].<ref>{{cite web\|url=https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/\|title=The Missing Men in Your Family Tree\|first=John\|last=Tierney\|date=5 September 2007\|website=] \|access-date=5 May 2018\|url-status=live\|archive-url=https://web.archive.org/web/20180505211842/https://tierneylab.blogs.nytimes.com/2007/09/05/the-missing-men-in-your-family-tree/ \|archive-date=5 May 2018}}</ref>

	Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2<sup>''n''</sup> ancestors in the ''n''th generation before her/him and a total of 2<sup>''g''+1</sup> − 2 ancestors in the ''g'' generations before him/her. In practice, however, it is clear that most ancestors of humans (and any other species) are multiply related (see ]). Consider ''n'' = 40: the human species is more than 40 generations old, yet the number 2<sup>40</sup>, approximately 10<sup>12</sup> or one trillion, dwarfs the ].		Assuming that all of an individual's ancestors are otherwise unrelated to each other, that individual has 2<sup>''n''</sup> ancestors in the ''n''th generation before her/him and a total of 2<sup>''g''+1</sup> − 2 ancestors in the ''g'' generations before him/her. In practice, however, it is clear that most ancestors of humans (and any other species) are multiply related (see ]). Consider ''n'' = 40: the human species is more than 40 generations old, yet the number 2<sup>40</sup>, approximately 10<sup>12</sup> or one trillion, dwarfs the ].

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